Respuesta :

DragonEmpire

Answer:

BEFmZ Is the answer i think

Step-by-step explanation:

hhelsinki

Answer:

mFBE = 14x + 6

Step-by-step explanation:

As you can see FBE is sum of FBC + CBE

         Given mFBE = mFBC + mCBE

                               = 10x - 9 + 4x + 15

                               = 14x + 6

So mZFBE = 14x + 6